Plaster terminal



L. E. CURTIS.

PLASTER TERMINAL.

APPLICATION FILED 001,31. 1921.

l ,4: l 9 232p Patented June 113, 1922.

A TTORNEYS.

STATES rarest carts LES E. CURTIS, 0F WARREN, OHIO, ASSIGNOR T0MILWAUKEE CORRUGATING- COMPANY, OF GREENFIELD, WISCONSIN, A CORPORATIONOF WISCONSIN.

PEI-ASTER TERMINAL.

Specification of Letters Patent.

Patented June 13, 1922.

To all 10 ham it may concern Be it known that I, LEWIS E. CURTIS, acitizen of the United States, residing at l/Varren, in the county ofTrumbull and State of Ohio, have invented certain new and and usefulImprovements in Plaster Terminals, of which the following is aspecification, reference being had to the accompanying drawing, forminga part thereof.

This invention relates to plaster terminals, such as corner beads, door,window and base beads, moldings or casings, screeds and the like havingexpanded metal attachment wings.

The main objects of the invention are to provide effective .bonds forand prevent cracking of the plaster coatings adjacent the terminalbeads, moldings or plaster gages or grounds; to economlze sheet metal inthe production of the terminals; to avoid breaking or abrupt bending ofthe attachment wings at or adjacent their junction with the terminalbeads, moldings or grounds; and generally to improve the constructionand facilitate the application of plaster terminals of this class.

The invention consists in the construction, arrangement and combinationof parts as hereinafter particularly described and pointed out in theclaims.

In the accompanying drawing like characters designate the same parts inthesev eral figures.

Figure 1 is an outside elevation of a corner bead constructed inaccordance with the invention; Fig. 2 is a front elevation of the cornerbead showing its two expanded atings to a wall at a salient angle toeach other, and with slitted and expanded attachment wings 6, preferablythough not necessarily, of,diamond-shaped mesh, as shown.

To facilitate the application and adaptaf tion of the bead or strip tothe plaster foundation of a wall which is more or less rough and uneven,and to prevent the breaking or abrupt bending of the wings Z) at theirjunction with the bead a, the bonds of the meshes are made longeradjacent the bead than elsewhere.

As shown by the drawing, the bonds -0 of the meshes next to the bead areabout four times the length, and the bonds d of the meshes in the nextouter rows are about twice the length of the bonds e in the outerportions of; the wings. The lengthening of the bonds of one or more rowsof meshes adjacent the bead, reinforces and avoids the breaking orabrupt bending of the wings at or near their unction with the bead byleverage or pressure exerted against their outer edges in making,handling and applying the bead, and thus the weakness in and objectionto corner beads or plaster terminals as heretofore constructed withslitted and expanded attachment wings having bonds between adjoiningmeshes of the same length throughout the wings, are avoided.

While an outside corner head for salient angles having expanded wings ofdiamondshaped mesh is shown for the purpose of illustration, theinvention may be embodied in an inside corner bead for application toreentrant angles, or in either an outside or inside corner bead providedwith slitted and expanded attachment wings having meshes of othershapes.

Referring to Fig. 3, showing a flush door or window casing or moldingdesigned to take the place of and dispense with the ordinary wood trimor casing, the entire or unexpanded terminal bead or molding a, whichserves as a ground or gage for evenly applying a coating of plaster, maybe made of various forms according to the finish and appearance desired.The construction of the single slitted and expanded attachment wing 12is like that of the corner bead shown in Figs. 1 and 2 and hereinbeforedescribed.

I claim:

1. A plaster terminal formed of sheet metal with a continuous unexpandedbead, serving as a gage for a plaster coating, and with a slitted andexpanded attachment wing, the bonds of the meshes at the junction of thewing and bead being longer than those of the meshes adjacent the outermargin of the wing.

2. A plaster terminal formed of sheet metal with a continuous unexpandedhead,

serving as a gage for a plaster coating", and serving as a gage for aplaster coating, and

With a slitted and expanded attachment wing with a slitted and expandedattachment having bonds of increasing length in succes- Wing ofdiamond-shaped mesh having longer 1 sive rows of meshes adjacent andtowards bonds adjacent the head. I

the bead. In Witness whereof I hereto afiix my sig- 3. -A plasterterminal formed of sheet nature.

metal With a continuous unexpanded bead LEWIS E. CURTIS.

